Type-writing machine.



F. D. AMMEN. TYPE WRITING MACHINE., APPLICATION HLBD fmm. 1911.

Patelld Mar. 19, 1912.

UNITED STATES PATENT onnicn.

FRANCIS n.1 Ammann', .or-NEW Yoan',` N. Y.. AssIGNon To UNnnnwoonTYPEWRITER. "COMPANL onimwyonmn. Y., n. CORPORATION on DELAWARE.

A .TYPE-WRITING NACHI-IIE.

To all whom t may concern.' I

Be it known that I, FRANCIS D. AMMEN,

a citizen of the United States, residing in New York city, in the'countyof NewYork and State of N ew York, have invented'certain new anduseful-Improvements in Ty etion of the parts of my 51 shows thWritingMachinea of' which. the following is a specification. l Thisinvention relates -to typewriting machines, and particularly to sucli'as. are provided with a bichrome ribbon, and which are adapted tobeused when desired to form stencils.

v The invention is illustratedI as applied to .a front striketypewriter, in which-the ribbon is normally heldslightly depressedbe--low the striking face of the platen,- and is raised automatically tocome before the type when it strikes. l The object of the invention. is.to enable the ribbon to be actuatedias-fsuggested, an to provide asimple construction which enable the ribbon to be silenced,'that is,held inoperative o r inactive whenl desired, so that the. type maystrikedirectly upon the wax sheet on the face of the platen.. In theaccompanying drawings, Figure 1 is a plan, indicating certain parts ofafront strike typewriter in dotted lines, and, showing the parts of theinvention in full lines.' Fig. 2 is a perspective, showing myimprovement in full lines, as viewed from. the rear, and indicating theuniversal bar in dotted lines in order to illustrate the manner ofmounting my device in the machine. Iig. 3 is a perspective, showing. ashort portion of a way rod, showing the-vibrator and ribbon lever, andalso showin the construction'of-the ribbon'lever. ig. 4t is aperspective, showing the. actuator which moves the, ribbon lever, andindicating the manner which it is mounted' andy secured in the universalbar.- Fig..5 isa perspective, showing the cam b meansofwhich the ac` Fi.6 is a reareleva-V igievice, showing, the.

tuator is controlle link which moves the cam broken away, andl to my imisa sidee evatinn of the parts of my iliverlP a way rod beinl shown. incross section, and the universal being shown in dotted outline.

ar and adjacent parts This view e machine 'for writing in redand' .911,theiowaabana of the bichmme ribbon.

- Specification-of Letters Il'atent. Ptted Mar, 19., 1912. Applicationtiled February 2, .1911.

Serial No. 606,108.

Fig. is a view Asimilar to Fig. 7, but showing the vibrator brokenaway,and .illustrating the parts in the silenced position, so that thevibrator willnot 'be yactuated to raise the ribbon enabling the type tostrike directly upon the stencilsheet.

` 1 represents a typewriter frame of the front striketype, and intherear portion of Y thisfifame a universal bar. 2 is mounted in .any usualmannenthefrear end thereof bcing supported on asuitable rocker' 3and..

ries the ribbon 1 0 in the usual manner.

.'I provide the lever 7 with an upwardly exten .armi 1l having anelongated verticalr slot. 12 formed therein. The material forming therear side of the lever at this point is offset rearwardly in a loop toforni .a-gap or throat 13. extending rearwardly 'from the slot 12. J ustto the rear of the lever 7 Dnjthe universal bar 2, I attach rigidly avguide sleeve- 14, a portion of which extends below the universali bar,as ind1' cated. In this sleeve, from the upper vend thereof, there isreceived a fiat. shank 15 on an actuator I16, the. upper. endl of theactuator having two-'forks 17' between1 which a wrist pin18 ismounted.,A as indicated, and thiswrist pin 18 lies in theaforesaid slotl2,

'pas shown. On the rearfa'ce of the shank 15 I'provide a rearwardlyprojectingl pin 19.

"It should; bevunderstood that when the universal bar. ismovedl'theactuator 16 may rockthelever-'Z so:a's' to.move the'vibrator 9. f`'order i to .control jor-adjjist. the. position 'Showmg the partsimmediately contiguous.

rev-ement in dotted lines. Fig. I-

preferably in the ormofaislideor f" plate, the body pf said,llateheingjdlis 4cae 'in a 'vertical plane an having an 'ned slot- 21whichV-reeeiveslb. aoresaid ,Win19,

as.,inidicated. Theilowefirfptin. otle plate 'i laterally taferm l.3.10,

e way rod 5 of the typewriter` v fics 22, and this, guide-footbas two.elongated alining slots 23 through which guide-screws rearwardlybythetype -act1o n, the wrist .pin

pass, said guide screws being seated in the universal bar 2, as shown.

In this construction, it should fbe under-V stood that 'when thecam isin the position 1S will have a" rearward or lateralpmovement, and rocksthearmllof .the lever7, elevating the 'vibrator 9 sutliciently yto bring.the lowerband or redjband of the bichrome rib-.-

bon opposite the striking .point on the platen.

` If the cam is thrown to. an .extremeposition pin. .18 off the.cftuatotvill.leppositeto the.

toward the-left side of the machine, the slot '2l will move the pin 19upwardly,and this raises. theactuatorso that the wrist moves into.thexupper: end ofthe slot 12. When this occurs the m o vement ot i theuniversal barsvill actuate the lever .7, but will give the ribbonjust.sutlicientmovementto bring the In.' the mid-position.- .fthesam,.the..wrist ser throat :1.3 of. the Slot. .12, that when theuniversal bar is ,actuatedgthe' actuator wrist 1 8 moves out intothe gap.orthroat 13 without actuatingthe lever 7 The posif tion .of the cam may.be controlled bya link 25which is attachedto the camflooselyl by apivot screw 26?, andextends over. toward the right of `the .machinewhere. it -is 4pivotally connected with a rigidarmj26-eXtend ingupwardly .trema-.rock shaft 27.j This rock shaft is of. the usualconstruction, and

extends horizontally toward the forward side of the machine whereitisprovided with a rigid cross arm 28 havinokeys 29, 30, the former ofwhich should. .the depressed to adapt the mechanism for writing black,and the latter of which is depressed to adapt the machine for writingred.. This 'crossarm 2 8 is normally heldin midfposition-by means ot asuitable controlling device 3l.

` -The ribbon 10 passes from a guide spoolV 32 throughthe upper end ofthe vibrator to a similar guide spool on the oppositeside .of themachine..

In Fig.. 8 is illustrated the type -.bar.33 striking thehplatenl, andindicatinghow the heel- 35 of .filetype bar forces. theunif versalbarE 2rearwardly in the .usualmanr ner. The rearward movement ,of .-the.``uni.-

' versal bar ,howeven-.does not. movethe .lever orthe. reason,that. .thewrist 18 moves into the gap .13, @Sahara Having .thusfdcscr-ibed ...myinvention, I Clavlmiw i 1. nIn a typewriting machine, incombina.-

tion, a ribbon holder, a leverpivoted there-.

to, an actuator, a universal bar, a guide for upper. .0r,blaqkifbeesfopposite. the .Striking said'actuator on said universalbar, a connection-between said lever and vsaid actual .tornormallyaitording means at one point for moving said lever lwhen said actuatormoves, and means for holding said actuator at another point in saidguide at which said vconnectionis inoperative.

2. In a typewriting machine having. a Vuniversal bar, a ribbon leverpivotally mounted adjacent thereto and. having an actuating arm, thecombinationof a vibratorattached tosaid lever, an actuator guided onsaid universal bar, saidactuatorhaving a free connection with said arm,and being adapted to rock said leverby a lateral move` ment, said arm.having a form at one-point permitting the independent lateral. movementof said actuator when in a mid position, -and means for controlling theposition of said actuator.

3. Ina typewriting machine, in-combination, a vibrator, a leverconnected therewith for actuating the same, a universal bar, said leverhaving an elongated slot therein, with of, an actuator mountedon .saiduniversal `bar and adapted. tobe -raised or lowered thereupomsaidactuator having1 a 4wrist`v running in said. slot, said wristaiordingmeans for normally moving said lever,- `said gap affording means forpermittingthemovementof said wrist without-actuating said lever.-

' 4.- In atypewriting machine, in combination, a member adapted to raiseand lower theribbon,a-universalbarv actuated by the type bars, anactuatoradjustably mounted on'- ,said universal bar, and a connectionbetween said actuator and saidy member. comlprising a pin on oneconstantly riding in a j slot on the other, said slot of saidconnectionhavinga lateral extension in which said pin may rld'e idly.

5. In a typewriting machine, in combination, avibrator, a` leverpivotally connected therewith and having an arm. with a slottherein,.a'universalbar, an actuatoronsaid y bar, said actuator havingap inrunning in y saidslot, and said slot having a laterally disposed gapwhich mayreceivesaidpin, enablingsaid actuator to move -withsaiduniversal bar without actuating saidlever, and

-a cam for shifting saidactuator up and Vdown on said universal-bar.

6. -In a .typewriting machine, the combinationwith a reciprocatinguniversalbar, of a sleeve thereon,.a ribbon-.vibrator,- an actuator.constantly-.engaging said. vibrator, andl a key. operated mexnber. .topositively-move and .hold said ,actuator` in .said ,sleeve to .vary

7. In a typeW-riting machine, the combinaa sleeve thereon, a ribbonvibrator comprising-a slot, an actuator carrying a pin cona laterallyprojecting gap at the side there- '1 and a key controlled double cammoving A said actuator in said sleeve to vary the ing forming anaperture in throw of said Vibrator.

8. In a typewriting machine, the combination with a pivoted ribbonvibrating lever, of a pin riding in an opening therein, a universal baractuating said pin to vibrate saidlever, so that when adjacent one endoi said opening it brings one edge of said ribbon to the printing point,and when adjacent the other end of said slot it brings the otheiedge ofsaid ribbon to the printing point, and a break in the Wall of said open-Which said pin may ride idly.

9. In a typewriting machine,- the combination with a pivoted ribbonvibrating lever, of a pin riding in an opening therein, a universal baractuating said pin to vibrate said lever, so that when adjacent one endof said opening it brings one edge of said ribbon to the printing point,and When adcent the other end of said slot it brings the other edge ofsaid ribbon to the printing point, and a break in the Wall of saidopening forming an aperture between said ends in which said pin may rideidly.

FRANCIS D. AMMEN.

Witnesses:

C. RIPLEY,- PAUL ZIRON.`

Copies of this patent maybe obtained for ve cents each, by addressingthe Commissioner of Yatents.

Washington, D. C.

